Most of the bouldering in the Arnold Arboretum can be found at Hemlock Hill directly south of Bussey Hill and flanked by Hemlock Road, Valley Road, and South Street. You'll find a collection of rhododendron at the top of the hill and many of the trees are tagged for identification. There are occasional passers by, but very few people actually climb in this area.

Access issues inherited from Boston

Many of the popular climbing areas in the Boston area lie in protected state parks and urban wildlife areas. Some are even conserved by special interest groups dedicated to preserving the history of climbing in the area. In and around the city, there are many walls and boulders that lie on semi-private and questionable land. Use your best judgement and follow your guides.

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